See also:

Traction control system (TCS)
Traction control is a driver aid feature that helps your vehicle maintain traction of the wheels, typically when driving on slippery and/or hilly road surfaces, by detecting and controlling wheel ...

Conditions of operation
...

Switching off AdvanceTrac
If the vehicle is stuck in snow, mud or sand, and seems to lose engine power, switching off certain features of the AdvanceTrac system may be beneficial because the wheels are allowed to spin. Thi ...